Solar Energy - renewable energy that comes in two types: electrical and thermal. We can use these two types directly and we obtain them with the help of solar panels, The latter transforms the energy coming from the sun in the more convenient thermal and electrical types.
Wind power comes from transforming wind currents into forms of mechanical and electrical energy. Whether to grind, press or pump water, the mechanism of a windmill is triggered by a propeller, which in turn, uses air currents.
Biomass is nothing more than organic material that, through a series of processes, can be transformed into energy. The burning of wood is a classic example of transforming a biodegradable material into thermal energy.
Hydro power is the most frequently used type of energy. It uses hydraulic energy caused by the fall of water to produce electricity.